Series Overview
Master authentication patterns in modern web applications: OAuth 2.1 flows, session management, token refresh, API security, and production-ready implementations across Shopify, MCP servers, and Next.js.
All Articles in Series
How to Add Shopify Authentication to a Headless Storefront Using the Customer Account API
A step-by-step guide to secure logins, registrations, and order history with full UX control
Learn how to implement Shopify authentication in a headless storefront using the Customer Account API—covering login, registration, and order history.
How to Fetch and Update Customer Data in Shopify Headless with Next.js 15
Securely fetch and update Shopify customer profiles, addresses, and orders using the Customer Account API with OAuth and GraphQL in a type-safe Next.js 15 app.
A complete guide to fetching and updating Shopify customer data in a headless Next.js 15 app using the Customer Account API, GraphQL, and OAuth-based authentication.
Build a Secure Email Pipeline in Next.js
Learn how to send secure transactional emails using Brevo without exposing your SMTP credentials.
Discover how to create a secure server-only email pipeline in Next.js that handles forms and sends notifications without risking credentials.
Build an IP Intelligence Firewall for Newsletter Signups
Protect Your Newsletter with Advanced IP Filtering Techniques
Learn how to build an IP intelligence firewall to protect your newsletter signups from spam and abuse. Perfect for Next.js developers!
OAuth for MCP Server: Complete Guide to Protecting Claude
Implement OAuth 2.1 with Dynamic Client Registration and PKCE to secure your MCP server for Claude clients
Protect your MCP server with OAuth 2.1: step-by-step guide for Claude CLI and Web including Dynamic Client Registration, PKCE, token verification, and common…
Persist Google OAuth Refresh Tokens with Next.js & Redis
Step-by-step Next.js guide using Upstash Redis to secure offline Google OAuth refresh tokens and enable background API…
Persist Google OAuth refresh tokens using Next.js and Upstash Redis to preserve refresh_token for offline access — secure background integrations without user…